Add localization support for various UI elements and messages

- Integrated localization for alert dialogs, snack bars, and button labels in PacketLogScreen and SettingsScreen.
- Updated location tracking service messages to use localized strings.
- Enhanced ContactTile and DirectMessageSheet with localized text for user interactions.
- Implemented localization in DrawingLayer and DrawingToolbar for map-related actions.
- Updated SAR Update Sheet to utilize localized strings for user prompts and actions.
- Ensured consistent use of localization across all relevant widgets and screens.

lib/screens/device_config_screen.dart

@@ -4,6 +4,7 @@ import 'package:provider/provider.dart';
 import 'package:geolocator/geolocator.dart';
 import '../providers/connection_provider.dart';
 import '../services/validation_service.dart';
+import '../l10n/app_localizations.dart';
 
 class DeviceConfigScreen extends StatefulWidget {
   const DeviceConfigScreen({super.key});
@@ -174,8 +175,8 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
 
       if (context.mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Public info saved'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.save),
             backgroundColor: Colors.green,
           ),
         );
@@ -244,8 +245,8 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
 
       if (context.mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Radio settings saved'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.save),
             backgroundColor: Colors.green,
           ),
         );
@@ -268,7 +269,7 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
       if (!serviceEnabled) {
         if (context.mounted) {
           ScaffoldMessenger.of(context).showSnackBar(
-            const SnackBar(content: Text('Location services disabled')),
+            SnackBar(content: Text(AppLocalizations.of(context)!.locationServicesDisabled)),
           );
         }
         return;
@@ -280,7 +281,7 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
         if (permission == LocationPermission.denied) {
           if (context.mounted) {
             ScaffoldMessenger.of(context).showSnackBar(
-              const SnackBar(content: Text('Location permission denied')),
+              SnackBar(content: Text(AppLocalizations.of(context)!.locationPermissionDenied)),
             );
           }
           return;
@@ -290,7 +291,7 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
       if (permission == LocationPermission.deniedForever) {
         if (context.mounted) {
           ScaffoldMessenger.of(context).showSnackBar(
-            const SnackBar(content: Text('Location permission permanently denied')),
+            SnackBar(content: Text(AppLocalizations.of(context)!.locationPermissionPermanentlyDenied)),
           );
         }
         return;
@@ -310,8 +311,11 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
 
       if (context.mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Location updated'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.locationBroadcast(
+              position.latitude.toStringAsFixed(6),
+              position.longitude.toStringAsFixed(6),
+            )),
             backgroundColor: Colors.green,
           ),
         );
@@ -331,8 +335,8 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
     if (!connectionProvider.deviceInfo.isConnected) {
       if (context.mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Not connected to device'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.deviceNotConnected),
             backgroundColor: Colors.orange,
           ),
         );
@@ -347,9 +351,12 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
       await connectionProvider.sendSelfAdvert(floodMode: true);
 
       if (context.mounted) {
+        final deviceInfo = connectionProvider.deviceInfo;
+        final lat = deviceInfo.advLat != null ? (deviceInfo.advLat! / 1000000).toStringAsFixed(6) : '0.0';
+        final lon = deviceInfo.advLon != null ? (deviceInfo.advLon! / 1000000).toStringAsFixed(6) : '0.0';
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Advertisement broadcast to mesh network'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.advertisedAtLocation(lat, lon)),
             backgroundColor: Colors.green,
           ),
         );
@@ -358,7 +365,7 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
       if (context.mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(
-            content: Text('Failed to broadcast: $e'),
+            content: Text(AppLocalizations.of(context)!.failedToAdvertise(e.toString())),
             backgroundColor: Colors.red,
           ),
         );
@@ -377,7 +384,7 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Device Settings'),
+        title: Text(AppLocalizations.of(context)!.settings),
       ),
       body: ListView(
         padding: const EdgeInsets.all(16),
@@ -441,13 +448,13 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
                                     child: CircularProgressIndicator(strokeWidth: 2),
                                   )
                                 : const Icon(Icons.sensors),
-                            tooltip: 'Broadcast',
+                            tooltip: AppLocalizations.of(context)!.settings,
                           ),
                           const SizedBox(width: 8),
                           IconButton.filled(
                             onPressed: _savePublicInfo,
                             icon: const Icon(Icons.save),
-                            tooltip: 'Save',
+                            tooltip: AppLocalizations.of(context)!.save,
                           ),
                         ],
                       ),
@@ -555,7 +562,7 @@ class _DeviceConfigScreenState extends State<DeviceConfigScreen> {
                       IconButton.filled(
                         onPressed: _saveRadioSettings,
                         icon: const Icon(Icons.save),
-                        tooltip: 'Save',
+                        tooltip: AppLocalizations.of(context)!.save,
                       ),
                     ],
                   ),

lib/screens/home_screen.dart

@@ -15,6 +15,7 @@ import 'settings_screen.dart';
 import 'device_config_screen.dart';
 import 'packet_log_screen.dart';
 import '../utils/toast_logger.dart';
+import '../l10n/app_localizations.dart';
 
 class HomeScreen extends StatefulWidget {
   final Function(AppThemeMode) onThemeChanged;
@@ -77,7 +78,7 @@ class _HomeScreenState extends State<HomeScreen>
 
     if (!connectionProvider.deviceInfo.isConnected) {
       if (context.mounted) {
-        ToastLogger.error(context, 'Device not connected');
+        ToastLogger.error(context, AppLocalizations.of(context)!.deviceNotConnected);
       }
       return;
     }
@@ -89,7 +90,7 @@ class _HomeScreenState extends State<HomeScreen>
         if (context.mounted) {
           ToastLogger.error(
             context,
-            'Location services are disabled. Please enable them in Settings.',
+            AppLocalizations.of(context)!.locationServicesDisabled,
           );
         }
         return;
@@ -101,7 +102,7 @@ class _HomeScreenState extends State<HomeScreen>
         permission = await Geolocator.requestPermission();
         if (permission == LocationPermission.denied) {
           if (context.mounted) {
-            ToastLogger.error(context, 'Location permission denied');
+            ToastLogger.error(context, AppLocalizations.of(context)!.locationPermissionDenied);
           }
           return;
         }
@@ -111,7 +112,7 @@ class _HomeScreenState extends State<HomeScreen>
         if (context.mounted) {
           ToastLogger.error(
             context,
-            'Location permission permanently denied. Please enable in Settings.',
+            AppLocalizations.of(context)!.locationPermissionPermanentlyDenied,
           );
         }
         return;
@@ -129,7 +130,7 @@ class _HomeScreenState extends State<HomeScreen>
       } catch (e) {
         print('❌ Failed to get GPS position: $e');
         if (context.mounted) {
-          ToastLogger.error(context, 'Failed to get GPS location');
+          ToastLogger.error(context, AppLocalizations.of(context)!.failedToGetGpsLocation);
         }
         return;
       }
@@ -149,13 +150,16 @@ class _HomeScreenState extends State<HomeScreen>
       if (context.mounted) {
         ToastLogger.success(
           context,
-          'Advertised at ${position.latitude.toStringAsFixed(6)}, ${position.longitude.toStringAsFixed(6)}',
+          AppLocalizations.of(context)!.advertisedAtLocation(
+            position.latitude.toStringAsFixed(6),
+            position.longitude.toStringAsFixed(6),
+          ),
         );
       }
     } catch (e) {
       print('❌ Failed to advertise device: $e');
       if (context.mounted) {
-        ToastLogger.error(context, 'Failed to advertise: $e');
+        ToastLogger.error(context, AppLocalizations.of(context)!.failedToAdvertise(e.toString()));
       }
     }
   }
@@ -203,7 +207,7 @@ class _HomeScreenState extends State<HomeScreen>
                     child: Column(
                       children: [
                         Text(
-                          'MeshCore',
+                          AppLocalizations.of(context)!.appTitle,
                           style: TextStyle(
                             color: Theme.of(context).colorScheme.onSurface,
                             fontSize: 18,
@@ -211,7 +215,7 @@ class _HomeScreenState extends State<HomeScreen>
                           ),
                         ),
                         Text(
-                          'Scanning for devices...',
+                          AppLocalizations.of(context)!.scanningForDevices,
                           style: TextStyle(
                             color: Theme.of(
                               context,
@@ -253,7 +257,7 @@ class _HomeScreenState extends State<HomeScreen>
                   const SizedBox(width: 12),
                   Expanded(
                     child: Text(
-                      'The default pin for devices without a screen is 123456. Trouble pairing? Forget the bluetooth device in system settings.',
+                      AppLocalizations.of(context)!.defaultPinInfo,
                       style: TextStyle(
                         color: Theme.of(context).colorScheme.onPrimaryContainer,
                         fontSize: 13,
@@ -288,7 +292,7 @@ class _HomeScreenState extends State<HomeScreen>
                           ),
                           const SizedBox(height: 16),
                           Text(
-                            'No devices found',
+                            AppLocalizations.of(context)!.noDevicesFound,
                             style: TextStyle(
                               color: Theme.of(
                                 context,
@@ -303,7 +307,7 @@ class _HomeScreenState extends State<HomeScreen>
                               connectionProvider.startScan();
                             },
                             icon: const Icon(Icons.refresh),
-                            label: const Text('Scan Again'),
+                            label: Text(AppLocalizations.of(context)!.scanAgain),
                           ),
                         ],
                       ),
@@ -358,7 +362,7 @@ class _HomeScreenState extends State<HomeScreen>
                           subtitle: Row(
                             children: [
                               Text(
-                                'Tap to connect',
+                                AppLocalizations.of(context)!.tapToConnect,
                                 style: TextStyle(
                                   color: Theme.of(
                                     context,
@@ -450,7 +454,7 @@ class _HomeScreenState extends State<HomeScreen>
                           await provider.disconnect();
                         },
                         icon: const Icon(Icons.power_settings_new),
-                        tooltip: 'Disconnect',
+                        tooltip: AppLocalizations.of(context)!.disconnect,
                         color: Colors.red.shade700,
                       );
                     }
@@ -461,11 +465,11 @@ class _HomeScreenState extends State<HomeScreen>
                   icon: const Icon(Icons.more_vert),
                   itemBuilder: (context) => [
                     PopupMenuItem(
-                      child: const Row(
+                      child: Row(
                         children: [
-                          Icon(Icons.map),
-                          SizedBox(width: 8),
-                          Text('Map Management'),
+                          const Icon(Icons.map),
+                          const SizedBox(width: 8),
+                          Text(AppLocalizations.of(context)!.mapManagement),
                         ],
                       ),
                       onTap: () {
@@ -483,11 +487,11 @@ class _HomeScreenState extends State<HomeScreen>
                       },
                     ),
                     PopupMenuItem(
-                      child: const Row(
+                      child: Row(
                         children: [
-                          Icon(Icons.settings),
-                          SizedBox(width: 8),
-                          Text('Settings'),
+                          const Icon(Icons.settings),
+                          const SizedBox(width: 8),
+                          Text(AppLocalizations.of(context)!.settings),
                         ],
                       ),
                       onTap: () {
@@ -551,16 +555,16 @@ class _HomeScreenState extends State<HomeScreen>
                           Icons.message,
                           unreadCount,
                         ),
-                        text: 'Messages',
+                        text: AppLocalizations.of(context)!.messages,
                       ),
                       Tab(
                         icon: _buildTabIconWithBadge(
                           Icons.contacts,
                           newContactsCount,
                         ),
-                        text: 'Contacts',
+                        text: AppLocalizations.of(context)!.contacts,
                       ),
-                      const Tab(icon: Icon(Icons.map), text: 'Map'),
+                      Tab(icon: const Icon(Icons.map), text: AppLocalizations.of(context)!.map),
                     ],
                   ),
                 );
@@ -583,10 +587,10 @@ class _HomeScreenState extends State<HomeScreen>
           // Disconnected state: show connect button
           return Row(
             children: [
-              const Expanded(
+              Expanded(
                 child: Text(
-                  'MeshCore',
-                  style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
+                  AppLocalizations.of(context)!.appTitle,
+                  style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
                 ),
               ),
               ElevatedButton.icon(
@@ -608,7 +612,7 @@ class _HomeScreenState extends State<HomeScreen>
                 label: Text(
                   provider.isReconnecting
                       ? '${provider.reconnectionAttempt}/${provider.maxReconnectionAttempts}'
-                      : 'Connect',
+                      : AppLocalizations.of(context)!.connect,
                 ),
                 style: ElevatedButton.styleFrom(
                   backgroundColor: Colors.white,
@@ -624,7 +628,7 @@ class _HomeScreenState extends State<HomeScreen>
                 IconButton(
                   onPressed: () => provider.cancelReconnection(),
                   icon: const Icon(Icons.close, size: 20),
-                  tooltip: 'Cancel reconnection',
+                  tooltip: AppLocalizations.of(context)!.cancelReconnection,
                   style: IconButton.styleFrom(
                     backgroundColor: Colors.red.shade700,
                     foregroundColor: Colors.white,
@@ -650,7 +654,7 @@ class _HomeScreenState extends State<HomeScreen>
                       mainAxisSize: MainAxisSize.min,
                       children: [
                         Text(
-                          deviceInfo.selfName ?? 'MeshCore',
+                          deviceInfo.selfName ?? AppLocalizations.of(context)!.appTitle,
                           style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                           overflow: TextOverflow.ellipsis,
                         ),
@@ -838,8 +842,8 @@ class _HomeScreenState extends State<HomeScreen>
                   Expanded(
                     child: Text(
                       isConnected
-                          ? deviceInfo.displayName ?? 'Connected'
-                          : 'Not Connected',
+                          ? deviceInfo.displayName ?? AppLocalizations.of(context)!.connect
+                          : AppLocalizations.of(context)!.deviceNotConnected,
                       style: Theme.of(context).textTheme.bodyMedium,
                     ),
                   ),
@@ -881,7 +885,7 @@ class _HomeScreenState extends State<HomeScreen>
                           ? null
                           : () => _showConnectionDialog(context),
                       icon: const Icon(Icons.bluetooth_searching, size: 18),
-                      label: const Text('Connect'),
+                      label: Text(AppLocalizations.of(context)!.connect),
                       style: ElevatedButton.styleFrom(
                         padding: const EdgeInsets.symmetric(vertical: 8),
                       ),
@@ -896,7 +900,7 @@ class _HomeScreenState extends State<HomeScreen>
                               await provider.disconnect();
                             },
                       icon: const Icon(Icons.bluetooth_disabled, size: 18),
-                      label: const Text('Disconnect'),
+                      label: Text(AppLocalizations.of(context)!.disconnect),
                       style: OutlinedButton.styleFrom(
                         padding: const EdgeInsets.symmetric(vertical: 8),
                       ),

lib/screens/map_management_screen.dart

@@ -4,6 +4,7 @@ import 'package:latlong2/latlong.dart';
 import '../services/tile_cache_service.dart';
 import '../services/validation_service.dart';
 import '../models/map_layer.dart';
+import '../l10n/app_localizations.dart';
 
 class MapManagementScreen extends StatefulWidget {
   final TileCacheService tileCacheService;
@@ -217,8 +218,8 @@ class _MapManagementScreenState extends State<MapManagementScreen> {
 
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Download cancelled'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.cancel),
             backgroundColor: Colors.orange,
           ),
         );
@@ -237,19 +238,19 @@ class _MapManagementScreenState extends State<MapManagementScreen> {
     final confirmed = await showDialog<bool>(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Clear Cache'),
+        title: Text(AppLocalizations.of(context)!.clear),
         content: const Text(
           'Are you sure you want to delete all downloaded maps? This action cannot be undone.',
         ),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context, false),
-            child: const Text('Cancel'),
+            child: Text(AppLocalizations.of(context)!.cancel),
           ),
           TextButton(
             onPressed: () => Navigator.pop(context, true),
             style: TextButton.styleFrom(foregroundColor: Colors.red),
-            child: const Text('Clear'),
+            child: Text(AppLocalizations.of(context)!.clear),
           ),
         ],
       ),
@@ -295,7 +296,7 @@ class _MapManagementScreenState extends State<MapManagementScreen> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Map Management'),
+        title: Text(AppLocalizations.of(context)!.mapManagement),
       ),
       body: _isLoading
           ? const Center(child: CircularProgressIndicator())

lib/screens/map_tab.dart

@@ -28,6 +28,7 @@ import '../widgets/map/detailed_compass_dialog.dart';
 import '../widgets/map/drawing_layer.dart';
 import '../widgets/map/drawing_toolbar.dart';
 import '../widgets/messages/sar_update_sheet.dart';
+import '../l10n/app_localizations.dart';
 import 'map_management_screen.dart';
 
 class MapTab extends StatefulWidget {
@@ -643,8 +644,8 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
         _saveSettings();
 
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Failed to start background tracking. Check permissions and BLE connection.'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.failedToStartBackgroundTracking),
             duration: Duration(seconds: 3),
           ),
         );
@@ -710,8 +711,8 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
     if (!connectionProvider.deviceInfo.isConnected) {
       if (!mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(
-          content: Text('Not connected to device'),
+        SnackBar(
+          content: Text(AppLocalizations.of(context)!.deviceNotConnected),
           backgroundColor: Colors.red,
         ),
       );

lib/screens/messages_tab.dart

@@ -12,6 +12,7 @@ import '../models/sar_marker.dart';
 import '../widgets/messages/sar_update_sheet.dart';
 import '../widgets/contacts/direct_message_sheet.dart';
 import '../utils/toast_logger.dart';
+import '../l10n/app_localizations.dart';
 
 class MessagesTab extends StatefulWidget {
   final VoidCallback onNavigateToMap;
@@ -304,14 +305,14 @@ class _MessagesTabState extends State<MessagesTab> {
                                       ),
                                       const SizedBox(height: 16),
                                       Text(
-                                        'No messages yet',
+                                        AppLocalizations.of(context)!.noMessagesYet,
                                         style: Theme.of(
                                           context,
                                         ).textTheme.titleLarge,
                                       ),
                                       const SizedBox(height: 8),
                                       Text(
-                                        'Pull down to sync messages',
+                                        AppLocalizations.of(context)!.pullDownToSync,
                                         style: Theme.of(
                                           context,
                                         ).textTheme.bodyMedium,
@@ -374,7 +375,7 @@ class _MessagesTabState extends State<MessagesTab> {
                   // SAR quick action button
                   IconButton(
                     icon: const Icon(Icons.add_location_alt),
-                    tooltip: 'Send SAR marker',
+                    tooltip: AppLocalizations.of(context)!.sendSarMarker,
                     onPressed: _showSarDialog,
                     style: IconButton.styleFrom(
                       backgroundColor: Theme.of(
@@ -579,9 +580,9 @@ class _MessageBubble extends StatelessWidget {
             // Delete message option
             ListTile(
               leading: const Icon(Icons.delete, color: Colors.red),
-              title: const Text(
-                'Delete message',
-                style: TextStyle(color: Colors.red),
+              title: Text(
+                AppLocalizations.of(context)!.delete,
+                style: const TextStyle(color: Colors.red),
               ),
               onTap: () {
                 Navigator.pop(context);
@@ -633,6 +634,7 @@ class _MessageBubble extends StatelessWidget {
   }
 
   void _showDeleteConfirmation(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
@@ -641,7 +643,7 @@ class _MessageBubble extends StatelessWidget {
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(l10n.cancel),
           ),
           TextButton(
             onPressed: () {

lib/screens/packet_log_screen.dart

@@ -5,6 +5,7 @@ import 'dart:io';
 import 'package:path_provider/path_provider.dart';
 import '../models/ble_packet_log.dart';
 import '../services/meshcore_ble_service.dart';
+import '../l10n/app_localizations.dart';
 
 class PacketLogScreen extends StatefulWidget {
   final MeshCoreBleService bleService;
@@ -149,12 +150,12 @@ class _PacketLogScreenState extends State<PacketLogScreen> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Clear Packet Logs'),
+        title: Text(AppLocalizations.of(context)!.clearAllData),
         content: const Text('Are you sure you want to clear all packet logs? This cannot be undone.'),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(AppLocalizations.of(context)!.cancel),
           ),
           TextButton(
             onPressed: () {
@@ -166,7 +167,7 @@ class _PacketLogScreenState extends State<PacketLogScreen> {
               );
             },
             style: TextButton.styleFrom(foregroundColor: Colors.red),
-            child: const Text('Clear'),
+            child: Text(AppLocalizations.of(context)!.clear),
           ),
         ],
       ),

lib/screens/settings_screen.dart

@@ -11,6 +11,7 @@ import '../services/location_tracking_service.dart';
 import '../services/locale_preferences.dart';
 import '../utils/sample_data_generator.dart';
 import '../theme/app_theme.dart';
+import '../l10n/app_localizations.dart';
 
 class SettingsScreen extends StatefulWidget {
   final Function(AppThemeMode) onThemeChanged;
@@ -97,7 +98,10 @@ class _SettingsScreenState extends State<SettingsScreen> {
             ScaffoldMessenger.of(context).showSnackBar(
               SnackBar(
                 content: Text(
-                  'Location broadcast: ${position.latitude.toStringAsFixed(5)}, ${position.longitude.toStringAsFixed(5)}',
+                  AppLocalizations.of(context)!.locationBroadcast(
+                    position.latitude.toStringAsFixed(5),
+                    position.longitude.toStringAsFixed(5),
+                  ),
                 ),
                 backgroundColor: Colors.green,
                 duration: const Duration(seconds: 2),
@@ -220,7 +224,12 @@ class _SettingsScreenState extends State<SettingsScreen> {
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(
           content: Text(
-            'Loaded $teamCount team members, $channelCount channels, ${sarMessages.length} SAR markers, ${channelMessages.length} messages',
+            AppLocalizations.of(context)!.loadedSampleData(
+              teamCount,
+              channelCount,
+              sarMessages.length,
+              channelMessages.length,
+            ),
           ),
           backgroundColor: Colors.green,
         ),
@@ -229,7 +238,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
       if (!mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(
-          content: Text('Failed to load sample data: $e'),
+          content: Text(AppLocalizations.of(context)!.failedToLoadSampleData(e.toString())),
           backgroundColor: Colors.red,
         ),
       );
@@ -247,11 +256,11 @@ class _SettingsScreenState extends State<SettingsScreen> {
 
     if (!success && mounted) {
       ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(
+        SnackBar(
           content: Text(
-            'Failed to start background tracking. Check permissions and BLE connection.',
+            AppLocalizations.of(context)!.failedToStartBackgroundTracking,
           ),
-          duration: Duration(seconds: 3),
+          duration: const Duration(seconds: 3),
         ),
       );
     }
@@ -272,19 +281,19 @@ class _SettingsScreenState extends State<SettingsScreen> {
     final confirmed = await showDialog<bool>(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Clear All Data'),
-        content: const Text(
-          'This will clear all contacts and SAR markers. Are you sure?',
+        title: Text(AppLocalizations.of(context)!.clearAllDataConfirmTitle),
+        content: Text(
+          AppLocalizations.of(context)!.clearAllDataConfirmMessage,
         ),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context, false),
-            child: const Text('Cancel'),
+            child: Text(AppLocalizations.of(context)!.cancel),
           ),
           TextButton(
             onPressed: () => Navigator.pop(context, true),
             style: TextButton.styleFrom(foregroundColor: Colors.red),
-            child: const Text('Clear'),
+            child: Text(AppLocalizations.of(context)!.clear),
           ),
         ],
       ),
@@ -307,8 +316,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
     if (!mounted) return;
 
     ScaffoldMessenger.of(context).showSnackBar(
-      const SnackBar(
-        content: Text('All data cleared'),
+      SnackBar(
+        content: Text(AppLocalizations.of(context)!.allDataCleared),
         backgroundColor: Colors.orange,
       ),
     );
@@ -317,22 +326,22 @@ class _SettingsScreenState extends State<SettingsScreen> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(title: const Text('Settings')),
+      appBar: AppBar(title: Text(AppLocalizations.of(context)!.settings)),
       body: ListView(
         children: [
           // General Settings Section
-          _buildSectionHeader('General'),
+          _buildSectionHeader(AppLocalizations.of(context)!.general),
           ListTile(
             leading: const Icon(Icons.palette),
-            title: const Text('Theme'),
+            title: Text(AppLocalizations.of(context)!.theme),
             subtitle: Text(AppTheme.getThemeDisplayName(_selectedTheme)),
             trailing: const Icon(Icons.chevron_right),
             onTap: () => _showThemeDialog(),
           ),
           SwitchListTile(
             secondary: const Icon(Icons.radar),
-            title: const Text('Show RX/TX Indicators'),
-            subtitle: const Text('Display packet activity indicators in top bar'),
+            title: Text(AppLocalizations.of(context)!.showRxTxIndicators),
+            subtitle: Text(AppLocalizations.of(context)!.displayPacketActivity),
             value: _showRxTxIndicators,
             onChanged: (value) async {
               setState(() {
@@ -343,7 +352,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
           ),
           ListTile(
             leading: const Icon(Icons.language),
-            title: const Text('Language'),
+            title: Text(AppLocalizations.of(context)!.language),
             subtitle: Text(LocalePreferences.getDisplayName(_selectedLocale)),
             trailing: const Icon(Icons.chevron_right),
             onTap: () => _showLanguageDialog(),
@@ -351,13 +360,13 @@ class _SettingsScreenState extends State<SettingsScreen> {
           const Divider(),
 
           // Location Settings Section
-          _buildSectionHeader('Location Broadcasting'),
+          _buildSectionHeader(AppLocalizations.of(context)!.locationBroadcasting),
 
           // Automatic tracking settings
           SwitchListTile(
             secondary: const Icon(Icons.location_on),
-            title: const Text('Auto Location Tracking'),
-            subtitle: const Text('Automatically broadcast position updates'),
+            title: Text(AppLocalizations.of(context)!.autoLocationTracking),
+            subtitle: Text(AppLocalizations.of(context)!.automaticallyBroadcastPosition),
             value: _locationService.isTracking,
             onChanged: (value) {
               if (value) {
@@ -371,8 +380,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
           if (_locationService.isTracking) ...[
             ListTile(
               leading: const Icon(Icons.tune),
-              title: const Text('Configure Tracking'),
-              subtitle: const Text('Distance and time thresholds'),
+              title: Text(AppLocalizations.of(context)!.configureTracking),
+              subtitle: Text(AppLocalizations.of(context)!.distanceAndTimeThresholds),
               trailing: const Icon(Icons.chevron_right),
               onTap: () => _showTrackingConfigDialog(),
             ),
@@ -381,10 +390,10 @@ class _SettingsScreenState extends State<SettingsScreen> {
           const Divider(),
 
           // About Section
-          _buildSectionHeader('About'),
+          _buildSectionHeader(AppLocalizations.of(context)!.about),
           ListTile(
             leading: const Icon(Icons.info),
-            title: const Text('App Version'),
+            title: Text(AppLocalizations.of(context)!.appVersion),
             subtitle: Text(
               _packageInfo != null
                   ? '${_packageInfo!.version} (${_packageInfo!.buildNumber})'
@@ -393,34 +402,34 @@ class _SettingsScreenState extends State<SettingsScreen> {
           ),
           ListTile(
             leading: const Icon(Icons.badge),
-            title: const Text('App Name'),
+            title: Text(AppLocalizations.of(context)!.appName),
             subtitle: Text(_packageInfo?.appName ?? 'MeshCore SAR'),
           ),
           ListTile(
             leading: const Icon(Icons.description),
-            title: const Text('About MeshCore SAR'),
-            subtitle: const Text(
-              'Search & Rescue application with BLE mesh networking and offline maps',
+            title: Text(AppLocalizations.of(context)!.aboutMeshCoreSar),
+            subtitle: Text(
+              AppLocalizations.of(context)!.aboutDescription.split('\n\n')[0],
             ),
             onTap: () => _showAboutDialog(),
           ),
           const Divider(),
 
           // Developer Section
-          _buildSectionHeader('Developer'),
+          _buildSectionHeader(AppLocalizations.of(context)!.developer),
           ListTile(
             leading: const Icon(Icons.bug_report),
-            title: const Text('Package Name'),
+            title: Text(AppLocalizations.of(context)!.packageName),
             subtitle: Text(_packageInfo?.packageName ?? 'com.meshcore.sar'),
           ),
           const Divider(),
 
           // Sample Data Section
-          _buildSectionHeader('Sample Data'),
+          _buildSectionHeader(AppLocalizations.of(context)!.sampleData),
           Padding(
             padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
             child: Text(
-              'Load or clear sample contacts, channel messages, and SAR markers for testing',
+              AppLocalizations.of(context)!.sampleDataDescription,
               style: Theme.of(context).textTheme.bodySmall?.copyWith(
                 color: Theme.of(context).colorScheme.onSurface.withOpacity(0.6),
               ),
@@ -440,7 +449,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                             child: CircularProgressIndicator(strokeWidth: 2),
                           )
                         : const Icon(Icons.add_circle_outline),
-                    label: const Text('Load Sample Data'),
+                    label: Text(AppLocalizations.of(context)!.loadSampleData),
                     style: ElevatedButton.styleFrom(
                       padding: const EdgeInsets.symmetric(vertical: 12),
                     ),
@@ -451,7 +460,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                   child: OutlinedButton.icon(
                     onPressed: _isLoadingSampleData ? null : _clearSampleData,
                     icon: const Icon(Icons.delete_outline),
-                    label: const Text('Clear All Data'),
+                    label: Text(AppLocalizations.of(context)!.clearAllData),
                     style: OutlinedButton.styleFrom(
                       foregroundColor: Colors.red,
                       padding: const EdgeInsets.symmetric(vertical: 12),
@@ -488,7 +497,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
       context: context,
       builder: (context) => StatefulBuilder(
         builder: (context, setDialogState) => AlertDialog(
-          title: const Text('Location Tracking Configuration'),
+          title: Text(AppLocalizations.of(context)!.locationTrackingConfiguration),
           content: SingleChildScrollView(
             child: Column(
               mainAxisSize: MainAxisSize.min,
@@ -496,7 +505,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
               children: [
                 // Description
                 Text(
-                  'Configure when location broadcasts are sent to the mesh network',
+                  AppLocalizations.of(context)!.configureWhenLocationBroadcasts,
                   style: Theme.of(context).textTheme.bodySmall?.copyWith(
                     color: Colors.grey,
                   ),
@@ -505,14 +514,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
 
                 // Minimum Distance
                 Text(
-                  'Minimum Distance',
+                  AppLocalizations.of(context)!.minimumDistance,
                   style: Theme.of(context).textTheme.titleSmall?.copyWith(
                     fontWeight: FontWeight.bold,
                   ),
                 ),
                 const SizedBox(height: 8),
                 Text(
-                  'Broadcast only after moving ${tempMinDistance.toStringAsFixed(0)} meters',
+                  AppLocalizations.of(context)!.broadcastAfterMoving(tempMinDistance.toStringAsFixed(0)),
                   style: Theme.of(context).textTheme.bodyMedium,
                 ),
                 const SizedBox(height: 8),
@@ -551,14 +560,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
 
                 // Maximum Distance
                 Text(
-                  'Maximum Distance',
+                  AppLocalizations.of(context)!.maximumDistance,
                   style: Theme.of(context).textTheme.titleSmall?.copyWith(
                     fontWeight: FontWeight.bold,
                   ),
                 ),
                 const SizedBox(height: 8),
                 Text(
-                  'Always broadcast after moving ${tempMaxDistance.toStringAsFixed(0)} meters',
+                  AppLocalizations.of(context)!.alwaysBroadcastAfterMoving(tempMaxDistance.toStringAsFixed(0)),
                   style: Theme.of(context).textTheme.bodyMedium,
                 ),
                 const SizedBox(height: 8),
@@ -594,14 +603,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
 
                 // Minimum Time Interval
                 Text(
-                  'Minimum Time Interval',
+                  AppLocalizations.of(context)!.minimumTimeInterval,
                   style: Theme.of(context).textTheme.titleSmall?.copyWith(
                     fontWeight: FontWeight.bold,
                   ),
                 ),
                 const SizedBox(height: 8),
                 Text(
-                  'Always broadcast every ${_formatDuration(tempTimeInterval)}',
+                  AppLocalizations.of(context)!.alwaysBroadcastEvery(_formatDuration(tempTimeInterval)),
                   style: Theme.of(context).textTheme.bodyMedium,
                 ),
                 const SizedBox(height: 8),
@@ -638,7 +647,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
           actions: [
             TextButton(
               onPressed: () => Navigator.pop(context),
-              child: const Text('Cancel'),
+              child: Text(AppLocalizations.of(context)!.cancel),
             ),
             TextButton(
               onPressed: () async {
@@ -663,7 +672,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                   setState(() {});
                 }
               },
-              child: const Text('Save'),
+              child: Text(AppLocalizations.of(context)!.save),
             ),
           ],
         ),
@@ -689,14 +698,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Choose Theme'),
+        title: Text(AppLocalizations.of(context)!.chooseTheme),
         content: SingleChildScrollView(
           child: Column(
             mainAxisSize: MainAxisSize.min,
             children: [
               RadioListTile<AppThemeMode>(
-                title: const Text('Light'),
-                subtitle: const Text('Blue light theme'),
+                title: Text(AppLocalizations.of(context)!.light),
+                subtitle: Text(AppLocalizations.of(context)!.blueLightTheme),
                 value: AppThemeMode.light,
                 groupValue: _selectedTheme,
                 onChanged: (value) {
@@ -705,8 +714,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 },
               ),
               RadioListTile<AppThemeMode>(
-                title: const Text('Dark'),
-                subtitle: const Text('Blue dark theme'),
+                title: Text(AppLocalizations.of(context)!.dark),
+                subtitle: Text(AppLocalizations.of(context)!.blueDarkTheme),
                 value: AppThemeMode.dark,
                 groupValue: _selectedTheme,
                 onChanged: (value) {
@@ -718,7 +727,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
               RadioListTile<AppThemeMode>(
                 title: Row(
                   children: [
-                    const Text('SAR Red'),
+                    Text(AppLocalizations.of(context)!.sarRed),
                     const SizedBox(width: 8),
                     Container(
                       width: 16,
@@ -731,7 +740,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                     ),
                   ],
                 ),
-                subtitle: const Text('Alert/Emergency mode'),
+                subtitle: Text(AppLocalizations.of(context)!.alertEmergencyMode),
                 value: AppThemeMode.sarRed,
                 groupValue: _selectedTheme,
                 onChanged: (value) {
@@ -742,7 +751,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
               RadioListTile<AppThemeMode>(
                 title: Row(
                   children: [
-                    const Text('SAR Green'),
+                    Text(AppLocalizations.of(context)!.sarGreen),
                     const SizedBox(width: 8),
                     Container(
                       width: 16,
@@ -755,7 +764,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                     ),
                   ],
                 ),
-                subtitle: const Text('Safe/All Clear mode'),
+                subtitle: Text(AppLocalizations.of(context)!.safeAllClearMode),
                 value: AppThemeMode.sarGreen,
                 groupValue: _selectedTheme,
                 onChanged: (value) {
@@ -765,8 +774,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
               ),
               const Divider(),
               RadioListTile<AppThemeMode>(
-                title: const Text('Auto (System)'),
-                subtitle: const Text('Follow system theme'),
+                title: Text(AppLocalizations.of(context)!.autoSystem),
+                subtitle: Text(AppLocalizations.of(context)!.followSystemTheme),
                 value: AppThemeMode.system,
                 groupValue: _selectedTheme,
                 onChanged: (value) {
@@ -780,7 +789,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(AppLocalizations.of(context)!.cancel),
           ),
         ],
       ),
@@ -791,14 +800,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Choose Language'),
+        title: Text(AppLocalizations.of(context)!.chooseLanguage),
         content: SingleChildScrollView(
           child: Column(
             mainAxisSize: MainAxisSize.min,
             children: [
               RadioListTile<Locale?>(
-                title: const Text('System Default'),
-                subtitle: const Text('Follow system language'),
+                title: Text(LocalePreferences.getDisplayName(null)),
+                subtitle: Text(LocalePreferences.getDisplayName(null)),
                 value: null,
                 groupValue: _selectedLocale,
                 onChanged: (value) {
@@ -824,7 +833,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(AppLocalizations.of(context)!.cancel),
           ),
         ],
       ),
@@ -835,7 +844,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('About MeshCore SAR'),
+        title: Text(AppLocalizations.of(context)!.aboutMeshCoreSar),
         content: SingleChildScrollView(
           child: Column(
             mainAxisSize: MainAxisSize.min,
@@ -853,31 +862,19 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 style: Theme.of(context).textTheme.bodyMedium,
               ),
               const SizedBox(height: 16),
-              const Text(
-                'A Search & Rescue application designed for emergency response teams. '
-                'Features include:\n\n'
-                '• BLE mesh networking for device-to-device communication\n'
-                '• Offline maps with multiple layer options\n'
-                '• Real-time team member tracking\n'
-                '• SAR tactical markers (found person, fire, staging)\n'
-                '• Contact management and messaging\n'
-                '• GPS tracking with compass heading\n'
-                '• Map tile caching for offline use',
+              Text(
+                AppLocalizations.of(context)!.aboutDescription,
               ),
               const SizedBox(height: 16),
               Text(
-                'Technologies Used:',
+                AppLocalizations.of(context)!.technologiesUsed,
                 style: Theme.of(
                   context,
                 ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
               ),
               const SizedBox(height: 8),
-              const Text(
-                '• Flutter for cross-platform development\n'
-                '• BLE (Bluetooth Low Energy) for mesh networking\n'
-                '• OpenStreetMap for mapping\n'
-                '• Provider for state management\n'
-                '• SharedPreferences for local storage',
+              Text(
+                AppLocalizations.of(context)!.technologiesList,
               ),
             ],
           ),
@@ -885,7 +882,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Close'),
+            child: Text(AppLocalizations.of(context)!.close),
           ),
         ],
       ),